CPC H04W 28/0268 (2013.01) [H04W 28/0263 (2013.01); H04W 76/12 (2018.02); H04W 76/15 (2018.02); H04W 76/30 (2018.02)] | 16 Claims |
1. A method performed by a master base station in a wireless communication system, the method comprising:
transmitting, to a secondary base station, a modification request message for querying a first secondary cell group (SCG) configuration associated with the secondary base station; and
receiving, from the secondary base station, a modification response message, after transmitting the modification request message,
wherein, in case that the modification request message includes information indicating that the master base station requests the first SCG configuration,
the modification response message includes a container for a radio resource control (RRC) message including information on the first SCG configuration.
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